package com.mysoft.suweida.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.mysoft.suweida.common.R;
import com.mysoft.suweida.dto.DishDto;
import com.mysoft.suweida.entity.Category;
import com.mysoft.suweida.entity.Dish;
import com.mysoft.suweida.entity.DishFlavor;
import com.mysoft.suweida.service.CategoryService;
import com.mysoft.suweida.service.DishFlavorService;
import com.mysoft.suweida.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理*/
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private DishFlavorService dishFlavorService;
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品*/
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 菜品信息分页查询*/
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page = {},pageSize = {},name = {}",page,pageSize,name);

        //构造分页构造器
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //构造条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null,Dish :: getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        //执行查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) ->{
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            Category category = categoryService.getById(categoryId);//根据id查询分类对象
            if (category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和对应的口味信息*/
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id){
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }

    /**
     * 更新菜品信息和对应的口味信息*/
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info("修改菜品分类信息：{}",dishDto);
        dishService.updateWithFlavor(dishDto);
        return R.success("菜品信息修改成功");
    }

    /**
     * 根据id删除分类
     * 这里是逻辑删除，不是真删，把isDeleted字段更新为1就不显示了，间接完成了逻辑删除*/
    @DeleteMapping
    public R<String> delete(Long ids){
        Dish dish = dishService.getById(ids);
        //将获取到的菜品对象的状态设置为 0，表示 “禁售” 状态。
        dish.setIsDeleted(1);
        //构造条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.eq(Dish::getId,ids);
        //执行更新操作
        dishService.update(dish,queryWrapper);
        return R.success("菜品信息删除成功");
    }

    /**
     * 更新菜品为停售*/
    @PostMapping("/status/0")
    public R<String> updateStatusStop(Long ids){
        Dish dish = dishService.getById(ids);
        dish.setStatus(0);
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Dish::getId,ids);
        dishService.update(dish,queryWrapper);
        return R.success("菜品状态修改成功");
    }

    /**
     * 更新菜品为起售*/
    @PostMapping("/status/1")
    public R<String> updateStatusStart(Long ids){
        Dish dish = dishService.getById(ids);
        dish.setStatus(1);
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Dish::getId,ids);
        dishService.update(dish,queryWrapper);
        return R.success("菜品状态修改成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     */
   /* @GetMapping("/list")
    public R<List<Dish>> list (Dish dish){
        //构建一个查询对象
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        //查询菜品状态为起售状态的
        queryWrapper.eq(Dish::getStatus,1);
        //添加一个排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list);
    }*/

    @GetMapping("/list")
    public R<List<DishDto>> list (Dish dish){
        //构建一个查询对象
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        //查询菜品状态为起售状态的
        queryWrapper.eq(Dish::getStatus,1);
        //添加一个排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item) ->{
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            Category category = categoryService.getById(categoryId);//根据id查询分类对象
            if (category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            //当前菜品id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);

            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).collect(Collectors.toList());

        return R.success(dishDtoList);
    }
}
